Colombia - Puerto Salgar Road Project - environmental impact assessment (Vol. 1 of 5)

AEP_ Vo.. =/ G W 9. ,u, < r-B SUGAR N~~~~~~~~~~~~~~~~d.N !~~~ es~~~<~~ ~~ V>~~~~ta QdciNe ~~~~~Utica - '~~ ~ ~ . A~~ipann / ,T F~~~~~~~~~acctctiva Vg " - 3Sn rncisQo f' SALGAR CONCESSIONhM PROJE ARCA c~~ico ~ ~ ~ ,.-~~~~ ~San Cayetnom ENVIRONMENTAL IMPACT STUDY EXECUTIVE SUMMARY SA/An DE BOGOTA, / SAN ~TA F4 DE BOCOTA, D.C. ~ C H 1t7  REPUBLIC OF COLOMBIA MINISTRY OF TRANSPORT NATIONAL ROADS INSTITUTE PHASE III STUDIES: TOBIAGRANDE - PUERTO SALGAR CONCESSION PROJECT ENVIRONMENTAL IMPACT STUDY EXECUTIVE SUMMARY ENRIQUE DAVILA LOZANO - E.D.L. LTDA. CONSULTANT ENGINEERS SANTAFE DE BOGOTA, D.C. MARCH 1997  EXECUTIVE SUMMARY TABLE OF CONTENTS INTRODUCTION 1. DESCRIPTION OF PROJECT 1.1. Background 1.2. Areas of Influence 1.3. Route 1.4. Technical Features 2. ENVIRONMENTAL FEATURES OF THE REGION 2.1. Geology 2.2. Hydrology 2.3. Soils 2.4. Climate 2.5. Vegetation Cover and Land Use 2.6. Limnology 2.7. Socio-Economic Aspects 2.8. Archaeology 3. IMPACT EVALUATION 3.1. Geophysical Component 3.2. Hydrological Component 3.3. Biotic Component 3.4. Property Component 4. ENVIRONMENTAL MANAGEMENT PLAN 4.1. General Information 4.2. Relocation of Ecopetrol Multiple Pipeline 4.3. Final Disposal of Building Waste Material 4.4. Relocation of Cambras River 4.5. Negro River Canyon Forestry Reserve 4.6. Planting of Earthwork Slopes 4.7. Cutting Slope Grassing Programme 4.8. Tree-Planting Landscaping Programme 4.9. Social Management 4.10. Archaeological Rescue Work 4.11. Follow-Up and Monitoring 5. BUDGET AND EXECUTION SCHEDULE 1  INTRODUCTION This document summarizes the Environmental Studies carried out for the 68.44km.-long TOBIAGRANDE - PUERTO SALGAR road, in the west of Cundinamarca Department in the Republic of Colombia. Figure No. 1 shows the location of the project and its area of influence. The document has been drawn up within the framework of Colombian law, especially Law 99 of 1993 and Regulatory Decree 1753 of 1994 on this, relating to Environmental Licences. The information contained herein is aimed at international organizations and multilateral banking entities. A general description is given of the project, with the base line, followed by an environmental evaluation and details of the Environmental Management Plan, which is presented by programme and specific activity. The documentation consists of the Environmental Studies themselves, an Annex containing Tables and Figures, this Executive Summary, and a Booklet of Plans on Environmental Matters. 1. DESCRIPTION OF PROJECT 1.1. BACKGROUND This road has its origins in the 1953 Bogota - Medellin highway; part of this was actually built, while the remainder is the subject of this study. The firm INGETEC S.A. carried out construction design studies in 1983, and these were complemented in 1993. In 1996, the firm ENRIQUE DAVILA LOZANO - E.D.L. LTDA. produced the Phase IlIl studies. An Environmental Licence for building the road has already been granted by the Ministry of the Environment, and this is contained in Resolution 1420 dated 17th December 1996. The Concessionaire will be responsible for obtaining permits relating to the Water Concession, Pourings, Air Part and Land Use (Asphalt Plant), and Forestry Exploitation. Annex C contains the Corporaci6n Aut6noma Regional de Cundinamarca - CAR - forms that should be used when applying for these permits. 2  1.2. AREAS OF INFLUENCE Three kinds of area of influence have been identified: an Area of Direct Influence, which corresponds to a right of way no more than 60 metres wide; an Area of Indirect Influence, which relates to camps, sources of materials, and river and stream crossings; and an Area of Socio-Economic Influence, which covers the towns of Nimaime, Quebradanegra, Utica, Guaduas, Caparrapi and Puerto Salgar, all in Cundinamarca Department. 1.3. ROUTE The route starts at K71+500 on the Bogota - La Vega - Villeta road, at a height of 767 metres above sea level. It runs along the right bank of the Villeta river as far as Miquera, at which point it crosses the river and the railway line by means of a bridge 466.21 metres long before entering a tunnel 6.047 metres in length. It then reaches the site known as La Abuela, after which it follows the right bank of the Quebradanegra stream as far as the town of Utica. Before it reaches the built-up area of Utica, it turns in a westerly direction and follows the left bank of the Negro River as far as the outskirts of Guaduero. 8 tunnels are envisaged on this section, with lengths of between 175 metres and 1,240 metres, and 7 bridges varying between 35 metres and 180 metres long; the bridge over the Negro River will be 275 metres. Between Guaduero and K22, the road runs along the right bank of the Negro River, and from this point onwards along its left bank. Two tunnels are envisaged on the Guaduero - Dindal section, one 490 metres long and the other 5,200 metres in length. The terrain is rugged and highly dissected from Cambras onwards, with 12 bridges envisaged between 25 metres and 90 metres long, and four tunnels of lengths that vary between 230 metres and 1,110 metres. Towards the end of the route, the terrain becomes flat, and the road will join the Magdalena Trunk Route 4.1 kilometres north of Puerto Salgar, at a height of 176 metres above sea level. 1.4. TECHNICAL FEATURES The whole route is 68.44 kilometres long. The road is designed to have the specifications defined in Law 105 of 1993 for national roads in Colombia. The 3  0JUf _ LOCATION OF THE PROJECT cEIU BRIDGES 6 ' -o n - _ A fAn No. STATION SPAM No. STATION SPANi 7 40,.8 400 440400 40 0 < g 4 S gOnD2 2- |28 2____ 40.50 t 0 0485 760 <2 M